A scooter

Abstract

The utility model discloses a scooter, including front frame, rear frame, front wheel subassembly, rear wheel subassembly, folding rod, seat frame and backrest frame, the front wheel subassembly is hinged in the front side of front frame, and the rear wheel subassembly is established in the back side of rear frame, be equipped with the linkage board that extends to the front on the rear frame, the both sides link of front frame are equipped with the connecting bridge, and the middle part of connecting bridge and linkage board is hinged, to make front frame and rear frame can rotate around the middle part of linkage board, the front end of folding rod is hinged with front wheel subassembly, and the rear end is hinged with the front end of linkage board, the side pole of front frame both sides all are equipped with the extension section that extends to the back, and the front side of seat frame is equipped with the vertical rod, and the vertical rod is hinged with extension section, and the back side of seat frame is hinged with the middle part of backrest frame, and the bottom of backrest frame is hinged with the back side of rear frame, this scooter, folding operation is simple, convenient and practical, and the independent operation of the old and the weak person is convenient.

Description

Technical Field

[0001] This utility model relates to the field of transportation technology, specifically to a personal mobility vehicle. Background Technology

[0002] As a convenient short-distance travel tool, mobility scooters are gradually becoming a popular mode of transportation for the elderly and people with mobility impairments due to their ease of operation and low-carbon environmental friendliness. With the deepening of societal aging, the market demand for mobility scooters is increasing, and the requirements for their portability, ease of use, and convenient storage are also gradually rising.

[0003] Most mobility scooters on the market use a structure driven by an electric motor and powered by a battery, which can meet basic driving functions. However, some mobility scooters generally have a large overall weight. For example, utility model patent application number CN202221844993.7 discloses a mobility scooter for the elderly, which includes: a frame, a pair of front wheels, a pair of rear wheel assemblies, a shell, a battery, a control system, and a signal system; the shell is mounted on the frame... the pair of rear wheel assemblies are electrically connected to the control system; the signal system is mounted on the shell and is electrically connected to the control system. Because of its heavy frame structure and the fact that the vehicle cannot be folded, it is difficult to carry, especially for the elderly and those with weaker physical strength to operate independently, causing many inconveniences in scenarios such as vehicle storage, entering and exiting elevators, and placing it in the trunk of a car. Utility Model Content

[0004] The technical problem to be solved by this utility model is to overcome the shortcomings of the existing technology and provide a mobility scooter that is simple to fold, convenient and practical, and easy for the elderly and those with weak physical strength to operate independently.

[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: A mobility scooter includes a front frame, a rear frame, a front wheel assembly, a rear wheel assembly, a folding bar, a seat frame, and a backrest frame; The front wheel assembly is hinged to the front side of the front frame, and the rear wheel assembly is located at the rear side of the rear frame; The rear frame is provided with a forward-extending linkage plate; a connecting bridge is provided between the two side rods of the front frame, and the connecting bridge is hinged to the middle of the linkage plate so that the front frame and the rear frame can rotate relative to each other around the middle of the linkage plate. The front end of the folding rod is hinged to the front wheel assembly, and the rear end is hinged to the front end of the linkage plate. The hinge point between the folding rod and the front wheel assembly is higher than the hinge point between the front frame and the front wheel assembly. The side bars on both sides of the front frame are provided with rearward extension sections. The front side of the seat frame is provided with a vertical pole, which is hinged to the extension section. The rear side of the seat frame is hinged to the middle of the backrest frame, and the bottom of the backrest frame is hinged to the rear side of the rear frame.

[0006] As a further improvement to the above technical solution: the linkage plate is provided with a first locking member, and the connecting bridge is provided with a second locking member that can cooperate with the first locking member. When the first locking member cooperates with the second locking member, the front frame and the rear frame cannot rotate relative to each other.

[0007] As a further improvement to the above technical solution: the first locking member includes a handle and two side plates on both sides, the middle part of the side plate is hinged to the front end of the linkage plate, and the bottom is provided with a hanging groove; the second locking member includes a hanging rod and a support plate, the support plate is connected between the hanging rod and the connecting bridge; the hanging groove cooperates with the hanging rod to achieve locking.

[0008] As a further improvement to the above technical solution: the linkage plate is provided in two parts, the side plates are respectively hinged to the corresponding linkage plates, and the connecting bridge is provided with an end plate, which is hinged to the middle of the linkage plate.

[0009] As a further improvement to the above technical solution: the seat frame is provided with straps that can be used to bind the handle.

[0010] As a further improvement to the above technical solution: the front wheel assembly includes a support frame, a front fork, a front wheel, and a handlebar. A sleeve is provided in the middle of the support frame, the front fork passes through the sleeve and is hinged to the sleeve; the front wheel is located at the bottom of the front fork, the handlebar is connected to the front fork, the two sides of the support frame are respectively hinged to the side bars of the corresponding front frame, and the front end of the folding bar is hinged to the sleeve.

[0011] As a further improvement to the above technical solution: the sleeve is provided with a through hole, a damping element is provided in the through hole, the inner side of the damping element abuts against the front fork, and a spring plate is provided on the outer side of the sleeve. The two ends of the spring plate are connected to the sleeve by fasteners so that the spring plate abuts against the outer side of the damping element.

[0012] As a further improvement to the above technical solution: an armrest is hinged to the outer side of the top of the backrest frame, and a backrest is hinged to the inner side of the top of the backrest frame.

[0013] As a further improvement to the above technical solution: the backrest frame is provided with a third limiting block, and the backrest is provided with a fourth limiting block. The fourth limiting block can abut against the third limiting block to limit the rotation angle of the backrest.

[0014] As a further improvement to the above technical solution: the extension section is provided with a protruding force-bearing block, which can abut against the two side bars of the rear frame.

[0015] As a further improvement to the above technical solution: the rear side of the rear frame is also provided with an auxiliary wheel, and the rear frame is also provided with a net bag, which is made of flexible material.

[0016] As a further improvement to the above technical solution: the hinge point between the folding rod and the front wheel assembly is higher than the hinge point between the front frame and the front wheel assembly.

[0017] As a further improvement to the above technical solution: the height of the middle part of the linkage plate is lower than the height of both ends, or the height of the middle part of the linkage plate is lower than the connection between the linkage plate and the rear frame.

[0018] Compared with the prior art, the beneficial effects of this utility model are as follows: 1. The mobility scooter disclosed in this utility model, through the design of multiple linkage structures, only requires lifting the front end of the linkage plate to achieve the folding of the entire vehicle by gravity, reducing other unnecessary operations. The folding operation is simple, convenient and practical. The frame structure makes the whole vehicle lightweight and compact, which is easy for the elderly and those with weak physical strength to operate independently, and provides convenience for scenarios such as vehicle storage, entering and exiting elevators, and placing in the trunk of a car.

[0019] 2. The mobility scooter disclosed in this utility model further features that, when unfolded, the first locking member cooperates with the second locking member to prevent the connecting bridge and the linkage plate from rotating relative to each other, thereby achieving locking in the unfolded state and improving safety; the manual mechanical locking method is used to achieve locking, which simplifies the structure and reduces manufacturing costs while ensuring the reliability of the locking function.

[0020] 3. Furthermore, the mobility scooter disclosed in this utility model allows the user to unlock and manually fold the scooter by lifting the handlebars when folding. This causes the side panels to rotate counterclockwise around the central hinge point, separating the mounting slot from the mounting rod. The structure is simple, easy to operate, and further reduces costs. The V-shaped or L-shaped design of the linkage plate provides space for gripping and lifting the handlebars, making the structure more rational. After folding, the straps secure the handlebars in the unlocked state, preventing them from coming apart during movement or storage, thus improving the overall integrity and portability of the folded state.

[0021] 4. Furthermore, the mobility scooter disclosed in this utility model provides adjustable damping force for the steering movement of the front fork by setting damping components and spring plates. This effectively prevents the front wheel from swaying randomly due to road bumps or external forces while the vehicle is in motion, thereby improving the stability and handling of straight-line driving and enhancing safety.

[0022] 5. The mobility scooter disclosed in this utility model goes a step further by changing the commonly used four-wheel structure to a three-wheel structure consisting of a front wheel and two rear wheels, which effectively reduces the turning radius and is suitable for more usage scenarios. Attached Figure Description

[0023] Figure 1 This is a three-dimensional structural diagram of the mobility scooter in this invention from a first-person perspective when it is unfolded.

[0024] Figure 2 This is a three-dimensional structural diagram of the mobility scooter in this invention from a second perspective when it is unfolded.

[0025] Figure 3 This is a three-dimensional structural diagram of the mobility scooter in this utility model when folded.

[0026] Figure 4 This is a schematic diagram of the structure of the mobility scooter when the backrest is flipped up in this utility model.

[0027] Figure 5 This is a schematic diagram of the structure of the first locking component of the mobility scooter in this utility model when it is unlocked.

[0028] Figure 6 This is a structural schematic diagram of the folding process of the mobility scooter in this utility model.

[0029] Figure 7 This is a schematic diagram of the structure of the mobility scooter of this utility model after removing the decorative panels and other auxiliary components when it is unfolded.

[0030] Figure 8 This is a partially enlarged structural diagram showing the cooperation between the first and second locking components of the mobility scooter in this utility model.

[0031] Figure 9 This is a schematic diagram of the structure of the mobility scooter of this utility model after removing the decorative panels and other auxiliary components when folded.

[0032] Figure 10 This is a schematic diagram of the front frame structure in this utility model.

[0033] Figure 11 This is an exploded structural diagram of the backrest frame, armrests, and backrest connection structure in this utility model.

[0034] Figure 12 This is an exploded structural diagram of the damping component and spring sheet in this utility model.

[0035] Figure 13 This is a partial cross-sectional view of the damping component and spring sheet in this utility model.

[0036] The labels in the diagram represent: 10. Front frame; 11. Connecting axle; 111. End plate; 12. Second locking element; 121. Mounting rod; 122. Support plate; 13. Extension section; 131. Load-bearing block; 14. Decorative panel; 15. Power supply module; 20. Rear frame; 21. Linkage plate; 22. First locking element; 221. Handlebar; 222. Side plate; 223. Mounting slot; 30. Front wheel assembly; 31. Support frame; 311. Damping element; 312. Spring plate. 32. Front fork; 33. Front wheel; 34. Handlebar; 341. Telescopic bar; 342. Handlebar body; 40. Rear wheel assembly; 41. Rear wheel; 50. Folding bar; 60. Seat frame; 61. Stem post; 62. Straps; 63. Connecting plate; 64. Seat cushion; 70. Backrest frame; 701. First limit block; 702. Third limit block; 71. Armrest; 711. Second limit block; 72. Backrest; 721. Fourth limit block; 80. Training wheel; 90. Net. Detailed Implementation

[0037] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0038] As shown in the specification and claims of this utility model, unless the context clearly indicates otherwise, the words "a," "an," "an," and / or "the" are not specifically singular and may include plural forms. The terms "first," "second," and similar terms used in this utility model do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Similarly, the terms "comprising" or "including" mean that the element or object preceding the word covers the element or object listed after the word and its equivalents, without excluding other elements or objects. The terms "connected" or "linked" are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect.

[0039] The front-back, top-bottom, and left-right positional relationships described in this embodiment are as follows: Figure 1 As shown in the coordinate system.

[0040] like Figures 1 to 13 As shown, the mobility scooter of this embodiment includes a front frame 10, a rear frame 20, a front wheel assembly 30, a rear wheel assembly 40, a folding bar 50, a seat frame 60, and a backrest frame 70. The front wheel assembly 30 is hinged to the front side of the front frame 10, and the rear wheel assembly 40 is located at the rear side of the rear frame 20. The rear frame 20 is provided with a forward-extending linkage plate 21; a connecting bridge 11 is provided between the two side rods of the front frame 10, and the connecting bridge 11 is hinged to the middle of the linkage plate 21 so that the front frame 10 and the rear frame 20 can rotate relative to each other around the middle of the linkage plate 21. The front end of the folding rod 50 is hinged to the front wheel assembly 30, and the rear end is hinged to the front end of the linkage plate 21. It is worth noting that the hinge point between the folding rod 50 and the front wheel assembly 30 is higher than the hinge point between the front frame 10 and the front wheel assembly 30. The side bars on both sides of the front frame 10 are provided with rearward extension sections 13. The front side of the seat frame 60 is provided with a vertical pole 61, the end of the vertical pole 61 is hinged to the end of the extension section 13, the rear side of the seat frame 60 is hinged to the middle of the backrest frame 70, and the bottom of the backrest frame 70 is hinged to the rear side of the rear frame 20.

[0041] like Figure 10 As shown, the front frame 10 includes two side bars arranged opposite each other, and a connecting bridge 11 connects the two side bars. It is worth noting that the front end of the side bar is used to hinge with the front wheel assembly 30, and the rear end extends backward and upward to form a curved extension section 13. The rear end is used to hinge with the upright 61. The side bars of the front frame 10 and the connecting bridge 11 form a frame structure.

[0042] like Figure 7 As shown, the rear frame 20 includes two oppositely arranged side bars. The front ends of the two side bars are connected by a first connecting rod, and the rear ends are connected by a second connecting rod. The side bars, the first connecting rod, and the second connecting rod of the rear frame 20 form a frame structure. A linkage plate 21 is provided on the first connecting rod. The height of the middle part of the linkage plate 21 is lower than the height of the two ends, or the height of the middle part of the linkage plate 21 is lower than the connection point between the linkage plate 21 and the rear frame 20. That is, the linkage plate 21 can be a V-shaped plate or an L-shaped plate.

[0043] like Figure 7 As shown, the seat frame 60 has uprights 61 on both the left and right sides. Each upright 61 is hinged to the corresponding extension section 13. The structure of the two uprights 61 makes the seat frame 60 stable. The top surface of the seat frame 60 is used to install the seat cushion 64 to improve the riding experience.

[0044] like Figure 7 As shown, the backrest frame 70 includes two opposing support rods connected by a third link; the rear end of the side rod of the rear frame 20 is provided with an adapter, and the bottom end of the support rod of the backrest frame 70 is used to hinge with the adapter. It is worth noting that the rear side of the seat frame 60 is provided with an L-shaped connecting plate 63, which is hinged to the middle of the backrest frame 70 to avoid structural interference when folded.

[0045] In this embodiment, the main structures such as the front frame 10, rear frame 20, folding rod 50, seat frame 60, and backrest frame 70 are preferably made of aluminum material, which can further reduce the weight of the vehicle and make it more convenient for users.

[0046] like Figures 3 to 7As shown, the folding process of this mobility scooter is as follows: the front end of the linkage plate 21 is lifted, and under the action of gravity, the two ends of the linkage plate 21 rotate clockwise around the central hinge point. At this time, the front end of the linkage plate 21, the folding rod 50, the front wheel assembly 30 and the front frame 10 form a linkage structure. The seat frame 60, the upright rod 61, the backrest frame 70, the rear frame 20 and the extension section 13 form a linkage structure. As a result, the front frame 10 rotates counterclockwise around the central hinge point of the linkage plate 21, and the rear frame 20 rotates clockwise around the central hinge point of the linkage plate 21, so that the front frame 10 and the rear frame 20 move closer to each other. At the same time, the extension section 13 drives the seat frame 60 to rotate and move closer to the upper end of the backrest frame 70. The backrest frame 70 rotates around the bottom and moves closer to the rear frame 20. The front wheel assembly 30 moves closer to the front frame 10, and finally the whole folding is achieved.

[0047] This mobility scooter features a multi-linkage structure design, allowing the entire vehicle to be folded simply by lifting the front end of the linkage plate 21 and using gravity. This reduces unnecessary operations and makes the folding operation simple, convenient, and practical. The frame structure makes the entire vehicle lightweight and compact, making it easy for the elderly and those with weaker physical strength to operate independently. It also provides convenience for scenarios such as vehicle storage, entering and exiting elevators, and placing in the trunk of a car.

[0048] like Figure 1 , Figure 2 , Figure 4 and Figure 8 As shown, in this embodiment, the linkage plate 21 is provided with a first locking member 22, and the connecting bridge 11 is provided with a second locking member 12 that can cooperate with the first locking member 22. When the first locking member 22 and the second locking member 12 are engaged, the front frame 10 and the rear frame 20 cannot rotate relative to each other. Specifically, when unfolded, the first locking member 22 and the second locking member 12 cooperate to prevent the connecting bridge 11 and the linkage plate 21 from rotating relative to each other, thereby achieving locking in the unfolded state and improving safety. The manual mechanical locking method is used to achieve locking, which simplifies the structure and reduces manufacturing costs while ensuring the reliability of the locking function. In different embodiments, the first locking member 22 and the second locking member 12 can be selected as a snap-locking structure, a pin locking structure, or other locking structures.

[0049] like Figure 8As shown, in this embodiment, the first locking member 22 includes a handle 221 and two side plates 222. The middle part of the side plate 222 is hinged to the front end of the linkage plate 21, and the bottom is provided with a hooking groove 223. The second locking member 12 includes a hooking rod 121 and a support plate 122. The support plate 122 is connected between the hooking rod 121 and the connecting bridge 11. The hooking groove 223 cooperates with the hooking rod 121 to achieve locking. Specifically, when folding is required, the user lifts the handle 221, causing the side plate 222 to rotate counterclockwise around the hinge point in the middle, thereby driving the hooking groove 223 to separate from the hooking rod 121, thus unlocking and enabling manual folding. The structure is simple, the operation is convenient, and the cost is further reduced. At the same time, the V-shaped or L-shaped structure design of the linkage plate 21 provides clearance for gripping and lifting the handle 221, making the structure more reasonable.

[0050] like Figure 7 and Figure 8 As shown, in this embodiment, there are two linkage plates 21, and the side plates 222 are respectively hinged to the corresponding linkage plates 21. The connecting bridge 11 is provided with an end plate 111, which is hinged to the middle of the linkage plate 21. Specifically, the linkage plate 21 is welded to the rear frame 20. By setting two linkage plates 21, the force distribution is more uniform and the structure is more stable. The end plate 111 is welded to the connecting bridge 11, and the end plate 111 provides the linkage plate 21 with a hinge point and a force point, which facilitates processing and assembly.

[0051] like Figure 3 As shown, in this embodiment, the seat frame 60 is provided with a strap 62 for securing the handle 221. Specifically, after the mobility scooter is folded, the strap 62 is used to secure the handle 221 in the unlocked state, preventing it from coming apart when moved or stored, thus improving the overall integrity and portability of the folded state. It is worth noting that the strap 62 can be made of a quick-release structure such as Velcro for easy operation.

[0052] like Figures 1 to 7 , Figure 12 and Figure 13As shown, in this embodiment, the front wheel assembly 30 includes a support frame 31, a front fork 32, a front wheel 33, and a handlebar 34. A sleeve is provided in the middle of the support frame 31, through which the axle of the front fork 32 passes and is hinged. The front wheel 33 is located at the bottom of the front fork 32, and the handlebar 34 is connected to the front fork 32. Both sides of the support frame 31 are hinged to the corresponding side bars of the front frame 10, and the front end of the folding rod 50 is hinged to the sleeve. Specifically, a rolling bearing is provided between the sleeve and the front fork 32 to facilitate steering with the handlebar 34. The support frame 31 serves as the hinge carrier for the folding rod 50 and the front frame 10, as well as the mounting carrier for the front fork 32, providing a stable and flexible steering structure for the three-wheel layout. It is worth noting that the rear wheel assembly 40 includes two rear wheels 41, while the front wheel 33 has only one. This mobility scooter changes the commonly used four-wheel structure to a three-wheel structure consisting of the front wheel 33 and the two rear wheels 41, effectively reducing the turning radius and making it suitable for more usage scenarios. It is also worth noting that the handle 34 includes a telescopic rod 341 and a handle body 342. The handle body 342 is equipped with a human-machine interaction module and a control module. The human-machine interaction module can be a display screen or other structures. The telescopic rod 341 is easy to store when folded, and the control module can be a microcontroller.

[0053] like Figure 12 and Figure 13 As shown, in this embodiment, the sleeve has a through hole, and a damping element 311 is provided inside the through hole. The inner side of the damping element 311 abuts against the front fork 32, and a spring plate 312 is provided on the outer side of the sleeve. The two ends of the spring plate 312 are connected to the sleeve by fasteners so that the spring plate 312 abuts against the outer side of the damping element 311. Specifically, the fastener is preferably a screw. By setting the damping element 311 and the spring plate 312, an adjustable damping force is provided for the steering movement of the front fork 32, which can effectively prevent the front wheel 33 from swaying randomly due to road bumps or external forces when the vehicle is driving, thereby improving the stability and handling of straight-line driving and enhancing safety.

[0054] like Figure 11 As shown, in this embodiment, an armrest 71 is hinged to the outer side of the top of the backrest frame 70, and a backrest 72 is hinged to the inner side of the top of the backrest frame 70. Specifically, both the armrest 71 and the backrest 72 are hinged to the backrest frame 70, and can rotate and fold up together with the backrest frame 70 during vehicle folding, avoiding structural interference. It is worth noting that a first limiting block 701 is provided on the outer side of the top of the support rod of the backrest frame 70, and a second limiting block 711 is provided on the armrest 71. The first limiting block 701 and the second limiting block 711 abut against each other, so that the armrest 71 can only be flipped up and cannot be pressed down. A third limiting block 702 is provided on the inner side of the top of the support rod of the backrest frame 70, and a fourth limiting block 721 is provided on the backrest 72. The third limiting block 702 and the fourth limiting block 721 abut against each other, so that the backrest 72 can be flipped forward when folded, so that the folded external dimensions are smaller.

[0055] like Figure 7 and Figure 8 As shown, in this embodiment, the extension section 13 is provided with a protruding force-bearing block 131, which can abut against the side bars of the rear frame 20. Specifically, when the vehicle is in the unfolded use state, the force-bearing block 131 abuts against the side bars of the rear frame 20, serving as a force-bearing support point, effectively enhancing the overall structural strength and load-bearing stability.

[0056] like Figures 2 to 7 and Figure 9 As shown in this embodiment, the rear frame 20 is also provided with auxiliary wheels 80. Specifically, the auxiliary wheels 80 can prevent the mobility scooter from tipping over and can also be used as moving wheels after the mobility scooter is folded, making it convenient for users to move the folded mobility scooter.

[0057] like Figures 1 to 3 As shown, a net pocket 90 is also provided on the rear frame 20. Specifically, the net pocket 90 provides practical storage space for personal items, enhancing the functionality of the scooter. The net pocket 90 can be made of flexible materials such as nylon rope and can be folded and stored together with the whole vehicle when folded, without affecting the folding of the whole vehicle and reducing space occupation.

[0058] like Figure 1 As shown, in this embodiment, a power supply module 15 is also provided at the bottom of the front frame 10. The power supply module 15 is a storage battery and is located between the two side bars of the front frame 10. The control module is connected to the power supply module 15, the rear wheel assembly 40 and the human-machine interaction module to facilitate the operation of the mobility scooter.

[0059] like Figure 1 and Figure 2 As shown, the vehicle also includes a decorative panel 14, which covers the battery, front frame 10 and rear frame 20, etc., to avoid exposing the internal structure and affecting normal use.

[0060] When folding is required, the following steps are required for operating the mobility scooter: Step S1: As Figure 4 and Figure 5 As shown, the backrest 72 is flipped down for storage, and the telescopic rod 341 is adjusted to the lowest height. Step S2: As Figure 6 As shown, lifting the handle 221 upwards separates the mounting slot 223 from the mounting rod 121. At the same time, under the action of gravity, the front frame 10 and the rear frame 20 rotate relative to each other and move closer together. The handle 34 moves closer to the front frame 10, the seat frame 60 moves closer to the backrest frame 70, and the backrest frame 70 moves closer to the rear frame 20. Step S3: As Figure 3 As shown, the folding is completed, and the handle 221 is secured with strap 62 to prevent the mobility scooter from falling apart.

[0061] Because the main structure of this mobility scooter is made of aluminum frame, it is lightweight. When the handle 221 is lifted upwards, the entire scooter can be folded by gravity, making it easy to operate and convenient to use.

[0062] Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make many possible variations and modifications to the present invention, or modify it into equivalent embodiments, without departing from the scope of the present invention. Therefore, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present invention, without departing from the content of the present invention, should fall within the protection scope of the present invention.

Claims

1. A mobility scooter, characterized in that: Includes a front frame (10), a rear frame (20), a front wheel assembly (30), a rear wheel assembly (40), a folding bar (50), a seat frame (60), and a backrest frame (70); The front wheel assembly (30) is hinged to the front side of the front frame (10), and the rear wheel assembly (40) is located on the rear side of the rear frame (20); The rear frame (20) is provided with a forward-extending linkage plate (21); a connecting bridge (11) is provided between the two side rods of the front frame (10), and the connecting bridge (11) is hinged to the middle of the linkage plate (21) so that the front frame (10) and the rear frame (20) can rotate relative to each other around the middle of the linkage plate (21); The front end of the folding rod (50) is hinged to the front wheel assembly (30), and the rear end is hinged to the front end of the linkage plate (21). The side bars on both sides of the front frame (10) are provided with rearward extension sections (13), the front side of the seat frame (60) is provided with a vertical pole (61), the vertical pole (61) is hinged to the extension section (13), the rear side of the seat frame (60) is hinged to the middle of the backrest frame (70), and the bottom of the backrest frame (70) is hinged to the rear side of the rear frame (20).

2. The mobility scooter according to claim 1, characterized in that: The linkage plate (21) is provided with a first locking member (22), and the connecting bridge (11) is provided with a second locking member (12) that can cooperate with the first locking member (22). When the first locking member (22) cooperates with the second locking member (12), the front frame (10) and the rear frame (20) cannot rotate relative to each other.

3. The mobility scooter according to claim 2, characterized in that: The first locking member (22) includes a handle (221) and two side plates (222) on both sides. The middle part of the side plate (222) is hinged to the front end of the linkage plate (21), and the bottom is provided with a hanging groove (223). The second locking member (12) includes a hanging rod (121) and a support plate (122). The support plate (122) is connected between the hanging rod (121) and the connecting bridge (11). The hanging groove (223) cooperates with the hanging rod (121) to achieve locking.

4. The mobility scooter according to claim 3, characterized in that: The linkage plate (21) is provided in two pieces. The side plate (222) is hinged to the corresponding linkage plate (21) respectively. The connecting bridge (11) is provided with an end plate (111), which is hinged to the middle of the linkage plate (21).

5. The mobility scooter according to claim 3, characterized in that: The seat frame (60) is provided with straps (62) for securing the handle (221).

6. The mobility scooter according to any one of claims 1 to 5, characterized in that: The front wheel assembly (30) includes a support frame (31), a front fork (32), a front wheel (33), and a handlebar (34). The support frame (31) has a sleeve in the middle, the front fork (32) passes through the sleeve and is hinged to the sleeve; the front wheel (33) is located at the bottom of the front fork (32), the handlebar (34) is connected to the front fork (32), the two sides of the support frame (31) are respectively hinged to the side bars of the corresponding front frame (10), and the front end of the folding rod (50) is hinged to the sleeve.

7. The mobility scooter according to claim 6, characterized in that: The sleeve is provided with a through hole, and a damping element (311) is provided in the through hole. The inner side of the damping element (311) abuts against the front fork (32). A spring plate (312) is provided on the outer side of the sleeve. The two ends of the spring plate (312) are connected to the sleeve by fasteners so that the spring plate (312) abuts against the outer side of the damping element (311).

8. The mobility scooter according to any one of claims 1 to 5, characterized in that: An armrest (71) is hinged to the outer side of the top of the backrest frame (70), and a backrest (72) is hinged to the inner side of the top of the backrest frame (70).

9. The mobility scooter according to claim 8, characterized in that: The backrest frame (70) is provided with a third limiting block (702), and the backrest (72) is provided with a fourth limiting block (721). When the backrest (72) rotates at a certain angle, the fourth limiting block (721) can abut against the third limiting block (702) to restrict the rotation of the backrest (72).

10. The mobility scooter according to any one of claims 1 to 5, characterized in that: The extension section (13) is provided with a protruding force-bearing block (131), which can abut against the two side bars of the rear frame (20).

11. The mobility scooter according to any one of claims 1 to 5, characterized in that: The rear frame (20) is also provided with a net (90) made of flexible material.

12. The mobility scooter according to any one of claims 1 to 5, characterized in that: The hinge point between the folding rod (50) and the front wheel assembly (30) is higher than the hinge point between the front frame (10) and the front wheel assembly (30).

13. The mobility scooter according to any one of claims 1 to 5, characterized in that: The height of the middle part of the linkage plate (21) is lower than the height of the two ends; or, the height of the middle part of the linkage plate (21) is lower than the connection between the linkage plate (21) and the rear frame (20).

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